http://edition.cnn.com/2016/06/30/architecture/ole-scheeren-bangkok-skyscraper/index.html
Building skyscrapers is a symbol of economic growth. But, just constructing the tallest buildings doesn't seem to be impressive. For example, Shanghai Tower is the second tallest tower in the world, and the tallest one in China. But, few people know that, because the tower has no characteristic thing other than "tallest".
Both of height and uniqueness are main factors to be famous.
